Praseodymium-surface-modified magnesium alloy: Retardation of corrosion in artificial hand sweat

Weijia Wang; Xiaolin Zhang; Guosong Wu; Chenxi Wang; Paul K. Chu

doi:10.1016/j.matlet.2015.10.058

Author(s)

Weijia Wang
Xiaolin Zhang
Guosong Wu
Chenxi Wang
Paul K. Chu

Related Research Unit(s)

Department of Materials Science and Engineering

Detail(s)

Original language	English
Pages (from-to)	85-89
Journal / Publication	Materials Letters
Volume	163
Online published	23 Oct 2015
Publication status	Published - 15 Jan 2016

Link(s)

DOI	DOI https://doi.org/10.1016/j.matlet.2015.10.058 Final Published version
	Check@CityULib
Link to Scopus	https://www.scopus.com/record/display.uri?eid=2-s2.0-84945292698&origin=recordpage
Permanent Link	https://scholars.cityu.edu.hk/en/publications/publication(e65823d3-bf56-4123-b48c-9da2a54daab3).html

Abstract

Surface oxides can retard the onset of corrosion on metals in an aggressive environments. In this work, praseodymium is selected to modify the surface oxides on magnesium alloys based on the reactive element effect and added into pure magnesium and aluminum-containing magnesium alloys by ion implantation. A thicker praseodymium-rich oxide layer is obtained on the magnesium substrate after ion implantation compared to the original oxide film. The corrosion resistance in artificial hand sweat is improved as demonstrated by polarization and immersion tests. The improvement observed from the aluminum-containing magnesium alloy is more significant than that from pure magnesium.